Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a graceful arc. This semi-set three-stone engagement ring invites you to select a 9 x 4.5 mm marquise center, known for its dramatic, vintage-inspired profile that elongates the finger with quiet elegance.

Crafted from 10K yellow gold, the band is shaped with subtle curves that cradle side stones in a balanced, low-profile setting. The artisan finish reveals hand-polished surfaces and precise prong work, ensuring both security and a refined gleam that catches light from every angle. Designed for daily wear, the comfort-fit band rests gently without bulk, making it ideal for stacking or pairing with a wedding band.

Each diamond is lab-grown, offering a clarity and brilliance comparable to mined stones while reflecting a commitment to sustainable, ethical jewelry practices.

This ring suits those who appreciate a blend of classic form and modern craftsmanship—its slender shape complements slender to medium finger sizes and slips easily under gloves or sleeves. The semi-set design allows you to customize your center stone, making it a personal statement from the heart of Brooklyn’s artisan community.

Resizing is available to ensure a perfect fit, and our studio welcomes you to explore options in Williamsburg or begin your custom design journey online.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, where expert craftsmanship meets ethical sourcing in every piece we create.

See how your design comes to life with our Ring Design Online, or start a truly custom piece from scratch in our Williamsburg studio.

Explore our Guides & Education and Stories & Lifestyle for diamond education, care tips, and real studio stories.